Molding apparatus and battery tray manufactured thereby

Abstract

There are provided a molding apparatus and a battery tray manufactured thereby. The molding apparatus for molding a sheet that is fed along a first plane and manufacturing a battery tray includes an upper mold configured to press at least a part of the sheet from above the first plane to below the first plane and a lower mold configured to press at least a part of the sheet from below the first plane to above the first plane. It is possible to minimize a thickness of a product in a tray in which depths of battery accommodating grooves are large and to prevent incomplete molding from being generated.

What is claimed is: 
     
       1. A molding apparatus configured to mold a sheet that is fed along a first plane and to manufacture a battery tray, the molding apparatus comprising:
 a first mold configured to press at least a part of the sheet from a first side of the first plane to a second side of the first plane; and 
 a second mold configured to press at least a part of the sheet from the second side of the first plane to the first side of the first plane, 
 wherein the first mold comprises an upper mold and the second mold comprises a lower mold, wherein the lower mold comprises a plurality of convex portions and concave portions that protrude above and are recessed below a second plane parallel to the first plane. 
 
     
     
       2. The molding apparatus as claimed in  claim 1 , wherein the plurality of convex portions of the lower mold rise above the first plane by heights thereof as the lower mold rises and press at least a part of the sheet. 
     
     
       3. The molding apparatus as claimed in  claim 2 , wherein the upper mold comprises a plurality of convex portions and concave portions that protrude below and are recessed above a third plane parallel to the first plane. 
     
     
       4. The molding apparatus as claimed in  claim 3 , wherein the plurality of convex portions of the upper mold fall below the first plane by heights thereof as the upper mold falls and press at least a part of the sheet. 
     
     
       5. The molding apparatus as claimed in  claim 4 , wherein amounts by which the plurality of convex portions of the lower mold rise above the first plane correspond to amounts by which the plurality of convex portions of the upper mold fall below the first plane. 
     
     
       6. The molding apparatus as claimed in  claim 4 ,
 wherein the plurality of convex portions of the lower mold and the plurality of concave portions of the upper mold are arranged to face each other, and 
 wherein the plurality of convex portions of the lower mold are inserted into the plurality of concave portions of the upper mold as the lower mold rises and the upper mold falls. 
 
     
     
       7. The molding apparatus as claimed in  claim 6 , wherein the plurality of convex portions of the lower mold and the plurality of concave portions of the upper mold form bottom portions of a plurality of battery accommodating grooves provided in the battery tray. 
     
     
       8. The molding apparatus as claimed in  claim 7 ,
 wherein the plurality of convex portions of the upper mold and the plurality of concave portions of the lower mold are arranged to face each other, and 
 wherein the plurality of convex portions of the upper mold are inserted into the plurality of concave portions of the lower mold as the lower mold rises and the upper mold falls. 
 
     
     
       9. The molding apparatus as claimed in  claim 8 , wherein the plurality of convex portions of the upper mold form a plurality of partitions provided in the battery tray to distinguish the plurality of battery accommodating grooves from each other. 
     
     
       10. The molding apparatus as claimed in  claim 1 , wherein at least one of the first mold and the second mold comprises a plurality of holes configured to vacuum absorb the sheet. 
     
     
       11. A battery tray manufactured by the molding apparatus as claimed in  claim 1 .